Spring shade-roller.



Nb. 656,288. 4 Patented Aug. 2|, |900.

., E. F. HARTSHORN.

t SPRING SHADE ROLLER.

(Application led July 18, 1899.)

Nrrnn STATES ATEN'r FFICE EDMUND F. I'IARTSIIORN, OF NEWARK, NEW JERSEY,ASSIGNOR TO THE STEW'ART IIARTSHORN COMPANY, OF NEW JERSEY.

SPRING SHADE-ROLLER.

SPECIFICATION forming part of Letters Patent No. 656,288, dated August21, 1 900.

Application filed .Tuly 18, 1899. Serial No. 724,227. (No model.)

To all whom it may con/cern.-

Be it known that I, EDMUND F. IIARTS- HORN, a citizen of the UnitedStates of America, and a resident of Newark, county of Essex, State ofNew Jersey, have invented certain new and useful Improvements in SpringShade-Rollers, of which the following is a specification.

This improvement relates to the metallic piece termed a spear secured tothe outer end of the spindle within the roller, by which the latter ismounted in the bracket, and which forms the journal on which that end ofthe roller revolves; and the improvement consists in a novel method ofconstructing the spear by which it can be more cheaply and perfectlymade.

In the accompanying drawings, forming part of this specification, Figurel is a View of the complete spear, showing the parts assembled. Fig. 2is a detached view of the separate parts forming the spear, and Fig. 3is a view of the spear in position in the end of the spindle.

As shown in the drawings, the spear a is provided with a iiat outer endb, adapted to fit in the bracket and by which the spindle is heldstationary as the roller revolves around it, and contains, moreover, theratchet-hub c, with which the pawls in the roller engage in the usualand well-known manner.

To insure the correct and perfect working of the roller, it is necessarythat the parts of the spear be accurately constructed and that the edgesof the ratchet-hub be sharply made in order that their engagement withthe pawls be exact and true. Heretofore this form of spear has been castin one piece from suitable metal. Such construction is costly, and withit it is diiiicult to form the parts accurately, so as to obtain aperfect Working of the roller. In my improvement I propose to form thespear by ,stamping it up from suitable metal in` separate sections orpieces and uniting these to form the complete spear. In this improvedconstruction the spear is formed of the separate sections shown in Fig.2, stamped up from suitable metal, consisting of the main piece a, whichis inserted in the end of the spindle, and the ratchet-hub c and washersCZ, mounted on the part a, as shown. The piece a has at one end a squareflat head, the outer edge b of which is adapt- Ved to engage with thenotched windowbracket 'the latter, and for a like reason the centralholes in the ratchet-hub and in the washer are also rectangular, wherebythese parts cannot turn on the shank, but are firmly and securely heldin position. When the parts are put together and the piece a inserted inthe end of the spindle with the washer resting against the squareshoulder e, by reason of the bearing against this shoulder, inconnection with the engagement of the rectangular-shaped shank with therectangular holes in the washer and hub7 the parts are securelyheldtogether, and no separate oradditional fastening is necessaryto securethem.

What I claim is- In a spring shade-roller, a spear, stamped up frommetal, consisting of the piece a having a shank rectangular in crosssection, Wherewith the spear engages with the spindie and with theratchet-hub and washer, and a flattened outer end, provided with theinner shoulders e and edge b, adapted to engage with the bracket; theratchet-hub c; and the washer d, the hub and washer having central holesrectangular in shape to engage with the shank of the piece a, wherebythe parts are connected together, substantially as described.

EDMUND F. HARTSI-IORN.--

Witnesses:

FRED S. KEMPER, (l. E. ANDERSON.

